Interfacial stress in non-Newtonian flow through packed bed

被引：7
|
作者：
Patel, Suresh Kumar [1 ]
Majumder, Subrata Kumar [1 ]
机构：
[1] Indian Inst Technol, Dept Chem Engn, Gauhati 781039, Assam, India
来源：
POWDER TECHNOLOGY | 2011年 / 211卷 / 01期
关键词：
Packed bed; Interfacial area; Non-Newtonian liquid; Wettability; Shear stress; VISCOUS-FLUID-FLOW; POROUS-MEDIA; PRESSURE-DROP; MODEL; EXPANSION; PARTICLES; REACTORS; LAMINAR;
D O I：
10.1016/j.powtec.2011.04.010
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This study investigates the pressure drop characteristics, shear stress in packed bed with shear thinning power law type non-Newtonian liquid. A mechanistic model has also been developed to analyze the pressure drop and interfacial stress in packed bed with non-Newtonian liquid by considering the loss of energy due to wettability. The Ergun's and Foscolo's equations were used for comparison with the experimental data. The Ergun equation was modified to account for the effect of flow behavior index of non-Newtonian fluid in the column. The intensity factor of shear stress and the friction factor were analyzed based on energy loss due to wettability effect of liquid on the solid surface. (C) 2011 Elsevier B.V. All rights reserved.
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页码：127 / 134
页数：8
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